Qwt User's Guide svn
Public Types | Public Member Functions
QwtIntervalSymbol Class Reference

#include <qwt_interval_symbol.h>

List of all members.

Public Types

enum  Style {
  NoSymbol = -1,
  Bar,
  Box,
  UserSymbol = 1000
}

Public Member Functions

const QBrush & brush () const
virtual void draw (QPainter *, Qt::Orientation, const QPointF &from, const QPointF &to) const
bool operator!= (const QwtIntervalSymbol &) const
QwtIntervalSymboloperator= (const QwtIntervalSymbol &)
bool operator== (const QwtIntervalSymbol &) const
const QPen & pen () const
 QwtIntervalSymbol (Style=NoSymbol)
 QwtIntervalSymbol (const QwtIntervalSymbol &)
void setBrush (const QBrush &b)
void setPen (const QPen &)
void setStyle (Style)
void setWidth (int)
Style style () const
int width () const
virtual ~QwtIntervalSymbol ()

Detailed Description

A drawing primitive for displaying an interval like an error bar.

See also:
QwtPlotIntervalCurve

Member Enumeration Documentation

Symbol style.

Enumerator:
NoSymbol 

No Style. The symbol cannot be drawn.

Bar 

The symbol displays a line with caps at the beginning/end. The size of the caps depends on the symbol width().

Box 

The symbol displays a plain rectangle using pen() and brush(). The size of the rectangle depends on the translated interval and the width(),

UserSymbol 

Styles >= UserSymbol are reserved for derived classes of QwtIntervalSymbol that overload draw() with additional application specific symbol types.


Constructor & Destructor Documentation

QwtIntervalSymbol::QwtIntervalSymbol ( Style  style = NoSymbol)

Constructor

Parameters:
styleStyle of the symbol
See also:
setStyle(), style(), Style
QwtIntervalSymbol::QwtIntervalSymbol ( const QwtIntervalSymbol other)

Copy constructor.

QwtIntervalSymbol::~QwtIntervalSymbol ( ) [virtual]

Destructor.


Member Function Documentation

const QBrush & QwtIntervalSymbol::brush ( ) const
Returns:
Brush
See also:
setBrush()
void QwtIntervalSymbol::draw ( QPainter *  painter,
Qt::Orientation  orientation,
const QPointF &  from,
const QPointF &  to 
) const [virtual]

Draw a symbol depending on its style

Parameters:
painterPainter
orientationOrientation
fromStart point of the interval in target device coordinates
toEnd point of the interval in target device coordinates
See also:
setStyle()
bool QwtIntervalSymbol::operator!= ( const QwtIntervalSymbol other) const

Compare two symbols.

QwtIntervalSymbol & QwtIntervalSymbol::operator= ( const QwtIntervalSymbol other)

Assignment operator.

bool QwtIntervalSymbol::operator== ( const QwtIntervalSymbol other) const

Compare two symbols.

const QPen & QwtIntervalSymbol::pen ( ) const
Returns:
Pen
See also:
setPen(), brush()
void QwtIntervalSymbol::setBrush ( const QBrush &  brush)

Assign a brush.

The brush is used for the Box style.

Parameters:
brushBrush
See also:
brush()
void QwtIntervalSymbol::setPen ( const QPen &  pen)

Assign a pen

Parameters:
penPen
See also:
pen(), setBrush()
void QwtIntervalSymbol::setStyle ( Style  style)

Specify the symbol style

Parameters:
styleStyle
See also:
style(), Style
void QwtIntervalSymbol::setWidth ( int  width)

Specify the width of the symbol It is used depending on the style.

Parameters:
widthWidth
See also:
width(), setStyle()
QwtIntervalSymbol::Style QwtIntervalSymbol::style ( ) const
Returns:
Current symbol style
See also:
setStyle()
int QwtIntervalSymbol::width ( ) const
Returns:
Width of the symbol.
See also:
setWidth(), setStyle()
qmi style